The utility model discloses a generator stator core insulation sealing sleeve tighten screw combination, which belongs to an insulation element; capable to avoid the accumulation and the insulation sealing element and tighten screw stator contact short circuit formed dust into the stator core hole from any ventilation slot. The utility model is composed of an insulating sleeve (4) and a flange (6) which is fixed on the outer wall of the insulating sleeve, and each insulating sleeve (4) is respectively embedded in each ventilation groove (5) of the stator iron core hole (7) by respective flanges (6). The utility model can not only be screw and the stator core is isolated, and the flange can be embedded in the ventilation groove is closed, thus completely avoid the occurrence of defects of contact between the screw and the stator core caused by dust into the stator core hole formed, to eliminate the hazard caused by the short circuit is installed in a generator; the stator core hole in the ideal insulation sealing element.
【技术实现步骤摘要】
本技术涉及一种绝缘元件,尤其涉及一种可将发电机定子铁芯与 拉紧螺杆隔离,并且可将定子铁芯通风槽封闭的绝缘套管。
技术介绍
众所周知,为了紧固发电机的定子铁芯叠片以及为了降低定子铁芯损 耗,定子铁芯的内部大多采用双头螺杆对定子铁芯叠片进行拉紧、固定。为了避免电流增大 而烧坏铁芯,必须保证螺杆与定子铁芯绝缘。然而,目前用于固定定子铁芯叠片的螺杆为普 通双头螺杆,虽然在定子铁芯与该螺杆的两端以及在定子铁芯中间某段或某几段设有绝缘 隔套,但并没有将定子铁芯的所有通风槽封闭;发电机在运行过程中灰尘常常会从通风槽 进入定子铁芯孔中形成堆积,从而导致螺杆裸露的部分与定子铁芯发生接触而造成短路, 致使电流增大烧坏定子铁芯,造成重大损失。
技术实现思路
针对现有技术中存在的上述缺陷,本技术旨在提供一种能够避免 灰尘从任何一个通风槽进入定子铁芯孔中形成堆积而导致拉紧螺杆与定子铁芯接触短路 的发电机定子铁芯拉紧螺杆绝缘密封组合隔套。为了实现上述目的,本技术采用以下技术方案它由绝缘套管和固定在该绝 缘套管外壁上呈法兰状的凸缘构成,各绝缘套管通过各自的凸缘分别嵌在定子铁芯孔的每 一个通风槽中 ...
【技术保护点】
1.一种发电机定子铁芯拉紧螺杆绝缘密封组合隔套,其特征在于:由绝缘套管(4)和固定在该绝缘套管外壁上呈法兰状的凸缘(6)构成,各绝缘套管(4)通过各自的凸缘(6)分别嵌在定子铁芯孔(7)的每一个通风槽(5)中。
【技术特征摘要】
【专利技术属性】
技术研发人员:曾广,
申请(专利权)人:贵阳新光电气有限公司,
类型:实用新型
国别省市:52
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